Oh wow Minny came back.
No, we win any tiebreaker with Seattle. If both teams win their division with identical records, then we get the higher seed.I think the Lions win essentially ends that.
Only way we could get a bye now is for Seattle to win today and then lose to St Louis (at home) next week. The Seattle game will definitely be a 4:15/late start so the Cowboys would be gambling on a result that is highly unlikely.
Edit- Arizona would also have to lose next week vs SF